Charging a 2026 Rivian R1S Dual Large (20in) at home in Michigan

At Michigan's residential electricity rate of 21.14¢/kWh, a 2026 Rivian R1S Dual Large (20in) (rated 42.9 kWh per 100 miles by the EPA) costs $9.06 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 43.4% cheaper per mile than gasoline in Michigan — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Michigan owners putting 15,000 annual miles on a 2026 Rivian R1S Dual Large (20in) spend about $1,359 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,043 saved annually, at this mileage.

What one full charge costs

At Michigan's rate, fully covering this 2026 Rivian R1S Dual Large (20in)'s 300-mile EPA range costs about $27.19 (128.6 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Large (20in) in Michigan ranks 16,456 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Large (20in) ranks 316 of 400 EV models for raw efficiency, and Michigan ranks 38 of 51 for cheapest residential electricity.

Before you install a home charger in Michigan

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Ask a licensed Michigan electrician to quote the install before this math becomes a real decision.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Dual Large (20in)'s cost in Michigan. Curious how Michigan's 21.14¢/kWh compares? The guide to charging cost by state ranks every state side by side.